Winding mechanism



G. E. ALLEN ET AL WINDING MECHANISM Filed June 8, 1928 2 Sheets-Sheet 1 INVENTOR:

George 15'. flZZen Md (/0/717 G. /7 1/672,

ATTORNEY May 24, 1932. s. E. ALLEN ET AL WINDING MECHANISM Filed June 8, 1928 2 Sheets-Sheet 2 IINVENTOR:

Gearge ill? and 1/0/21; G [Z2671 ATTORNEY Patented May 24, 1932 UNITED STATES PATENT ()FFICE GEORGE E. ALLEN ANnJoHN :e. ALLEN, or PHILADELPHIA, PENNSYLVANIA, As-

SIGNORS TO A. SHIP W. ALLENS SONS, 0F PHILADELPHIA, PENNSYLVANIA, A PARTNER- wINnI e MECHANISM Application filed June 8, 1928. Serial No. 283,819.

The present invention relates to thread winding mechanisms and more particularly to the winding and building up of bobbins evenly and perfectly.

In winding mechanisms as heretofore constructed, it has been the common practice to mount the winding mechanisms and the gain control devices upon a common vertically reciprocable bar, the arrangement being such that the gain movement is brought about by the feed cups striking the built up thread on the respective bobbins. These successive blows of the cup against the bobbins cause wear on the thread which in the case of silk thread either leaves periodic imperfections or actual breaks inthe thread. Furthermore, such winding is a straight one and and the completed cop or bobbin is obj ectionable because if subjected to rough handling the straight convolutionsspill ofi of one end into a tangled mass. Another difficulty incident to these prior winding machine's is that the gain cups must be manuallyshifted when the operator is catching'up a thread and if not reset will drag over the face of the wound thread and produce worn places.

Some of the objects of the present invention are to provide an improvedthread winding mechanism to provide a thread winding mechanism wherein the gain control is nonreciprocable and is operated by contact with the thread Without the customary impact operation; to provide a mechanism for efliciently performing a cross winding of a thread upon a bobbin; to provide'meansfor rendering the gain mechanism of a thread winder inoperative while a bobbin is being removed and replaced; to provide a winding mechanism wherein bobbins of difi'erent' sizes can be simultaneously wound upon the same machine; to provide a winding mechanism wherein'delicate threads, such as rayon silk, can be wound into a perfect cop without the formation of worn or damaged-portions; to provide a winding mechanism wherein the threads are so cross wound as to positively prevent slipping and end displacement; and to provide other improvements as will hereinafter appear.

In the accompanying drawings, Fig. 1 represents'a front elevation of a winding mechanism embodying one form of the present invention; Fig. 2 represents a side elevation of the same; Fig. 3 represents a rear elevation of the same Fig. 4 represents a section on line 44 of Fig. 3; Fig. 5 represents a detail of the traveller; Fig. 6 represents a detail of the movable arm for supporting the gain mechanism; and Fig; 7 represents adetail of base support member. Y

Referring to the drawings, one form of the present invention is illustrated in one unit of a multiple bobbin winding machine'whereina rigid cross bar 10 of the main frame of the machine serves as a stationary orfiXed' support, in the present instance, for the bobbins and gain control thread feeding 'de vices, one bobbin and'one control device only being" shownfor the purpose of describing the invention'since the invention relates to one unit" only and can be either a singleor a multiple winding machine. I p

The bar '10 carries a bearing head'll,

which is fixedly mounted on the bar 10,".and forms a journal for'the rotatablespindle 12 to which the bobbin supporting plate 13 is made fast. This plate 13 removably supports the bobbin 14 and transmits the desired constant rotary motion thereto. Motionis transmitted to the spindle 12 by a friction wheel- 15 which rides upon the periphery of a driving friction wheel 16 fixed to rotate withthe driving shaft 17 of the machineand the construction is such that the bobbin rotates ata predetermined constant speed at all times.

In order to disconnect the bobbin plate 13 from the rotating means so that the bobbin 14 can be removed and replaced, a hub or collar 18 is provided below theplate '13'and is arranged to seat upon a laterally m'ovable' tion wheel 15 is out of or in contact with the driving wheel 16. p

For the purpose of laying the thread '23 upon the bobbin 14, a thread laying-onguide 4 '24. is provided which is located in close proximity to the side of the bobbin 14 and is car- I so ried in the present instance by a wire removably attached to one arm 26a of a bell crank 26, the other arm 26b of which supports a wire 27 terminating in an ofiset 28 located in the path of movement of a horizontallyreciprocable operating arm-30. The bell crank 26. is mounted for rocking movement upon a pivot 31 projecting laterally from a 111g 32formed upon a horizontally disposedtraveller 33; While aspring 34'coiled aboutt he pivot 31 exerts pressure upon the bell crank 26 in the proper direction to hold the offset 27 in contact with the'vertically disposed operatingarm 30. This arm is fixed to a reciprocable rod'35 suitably guided-b fixed parts of the machine frame and receives its motion by any suitable mechanical motion, such as a cam, crank or any other device capable of transmitting the desired movementto give the required riseand fall motionto the thread laying-on guide 24' whereby the latteri has a stroke of predetermined length. Thus the laying-on guide 24 is caused to tra'velin a path parallel to the axis of the bobbin 14 and this motion is preferably so proportioned with respect to the winding velocity of the bobbin as to cause the thread to be cross wound upon the bobbinand thereby give the desired overlapping of the thread convolution which prevents breakdownof the wound cop. As here shown, the guide 24 is located parallel'ito the free 'endrofthe wire 25 and has its guide prongs 36 in close proximity to the wire in order to ensure the proper relation to' prevent-the thread from throwing out of the guide. a r

In order to produce the required vgain movement of the thread without reciproca- 10 tionof the gain operating means, the traveller 33is'fixed to a sleeve 37which serves as a journalfor a cup or disc 38 and also rides freely upon a feed screw 40. This screw 40- is-mounted upon a base 41 to stand parallel tothe axisof the bobbin l4 and spaced therefrom so that the bevelled side face i2 of the cup 38 will just overlap the path of the cop .as it builds up and thus the contact of the rotating bobbin-causes'the cup 38 to have a step by step turning movement. This turning movement of the cup 38 is transmitted to twpioppositely disposed spring fingers 43 Which ridein the groove of the thread of the feed screw 40 and hence cause the cup 38 to travelalongthe screw 40 in the direction to compensate for the cop build up and thereby produce cop of uniform diameter. T The spring fingers 43 perform the function of a leader nut,- advancing the cup in response to the rotation of the cup about its sleeve 37.

The base 41 is pivotally mounted upon a bracket44 clamped torthe frame rod 10 and is normally held by a spring 45 against a stop 46' so that the cup 38 is correctly positioned with respect to the bobbin 14.- The base 41 has a portion thereof in the path of movement of aside face cam 47 formed upon the cam part 21, and the relative positions of the parts is such that when the part 21 is cup 38 is followed by the traveller 33 while the bell crank 26 guide 24an d oifset 28a lso move in the same direction but without-in t'erfering with the reciprocation OfjhQjbQlgl crank 26 or varying its .sti'loke.- In other words the ofiset 28 is alwaysi nthe path of- .the arm 30 and held pressed thereagainst the action of the spring 34'though1itspos1- tion vertically considered will change in accordance with the feeding of the cup Likewise the threadguide 24will vary its position verticallybut in every position its stroke will be the same, a 2 v V J 1 In the operation of thewindenthe traveller 33 is brought to its lowermostvposition so that the down-stroke ofthe thread guide 24 terminates opposite to the bottom end of the bobbin and causesthe-thread to be from there upward." The up stroke of the thread guide 24 in this initial position terminates v.partwayup the side of thcbobbin and the cup 38- is therefore set YOPPOsite-to this upper endfof the stroke. The machine is now started and the reciprocation of the I'Od'35 transmits motion to the arm 30 tonscillate the bell crank 26- alongside of th e rotating bobbin 14' so that the guide 2 4 lays the threaduponthe bobbin preferably with a cross wound effect. When the thread has wound the lower portionlof the cop'to the diameter where it comes into frictional contact with the bevelled face 42 of the cup and in consequence the latter is given ,axpartial' turn which by means of the fingers 43 and feed screw 40', simultaneously raises'the mits the same oscillation to the thread guide .24 irrespective of its position with relation to the bobbin andhence a uniform evenvwirrding takes place throughoutthe entire build ing up of the cop. 7 When the winding of the bobbin vhas been completed,-the handle- 22; is manually swung to the left, as viewedin Fig. l, and as a result the cam face 20- engages the hub 18 of the bobbintolift this spindle 12 away from its driving. means.

Following this lifting of the spindle 12, the continued swing of the part 21 brings the cam face 47 into contact with the base 41 to shift it and withdraw the cup 38 from above the winding and thus allow the wound cop and bobbin to be lifted OE and an empty bobbin replaced.

Having thus described our invention, we claim:

A quick cross traverse winding machine comprising a bobbin support, a gain mechanism automatically operable in accordance with the build-up of a bobbin on said sup port, a reciprocable rod extending lengthwise of the machine, an operating arm fixed to said rod and having a length at least equal to the length of the bobbin to be wound, a bell-crank pivoted to said gain mechanism having an arm projecting into the path of said operating arm, a thread guide carried by said bell-crank, and a spring holding said arm in contact with said operating arm.

Signed at Philadelphia, county of Philadelphia, State of Pennsylvania, this 7th day of June, 1928.

GEORGE E. ALLEN. JOHN G. ALLEN. 

